>7BWH_1|Chain A|Cytochrome b5 heme-binding domain-containing protein|Ramazzottius varieornatus (947166) HHHHHHSSENLYFQSLRKDKAEEQTFSWSEISQHTSANSLWVVVRDKTSPGSPLRVYDVTNFQKTHPGGHLILLKYAGTECSRAFAAVGHSKYAIKRMSQYRIGIAEADNVE